diff --git a/week01/01. Problems/README.md b/week01/01. Problems/README.md
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+Python Problems
==============

## Divisible by a given number
Find all numbers in the list `n` which are divisible by a given integer `d`.

### Signature
```python
def divisible_by_d(n: list, d: int) -> list:
    pass
```

### Test examples
```python
>>> divisible_by_d([1,2,3,4,5,6], 3)
[3, 6]
>>> divisible_by_d([0,1,2,3,4,5,6], 4)
[0, 4]
>>> divisible_by_d([0], 4)
[0]
>>> divisible_by_d([1,3,5], 2)
[]
```

## Knight valid moves count
Given a tuple with two indexes that denote the knight position on a matrix board, return the count of all valid moves which the knight can made.
### Signature
```python
def knight_moves(pos: tuple) -> int:
    # pos[0] denotes the knights row
    # pos[1] denotes the knights column
    pass
```

### Test examples
```python
>>> knight_moves((2, 6))
6
>>> knight_moves((0, 7))
2
>>> knight_moves((5, 0))
4
>>> knight_moves((4, 3))
8
>>> knight_moves((6, 7))
3
```

Consider these graphical examples

`Eight legal moves where pos = (4, 3)`

|M|0|1|2|3|4|5|6|7|
|-|-|-|-|-|-|-|-|-|
|**0**| | | | | | | | |
|**1**| | | | | | | | |
|**2**| | | \*| | \*| | | |
|**3**| | \*| | | | \*| | |
|**4**| | | | N| | | | |
|**5**| | \*| | | | \*| | |
|**6**| | | \*| | \*| | | |
|**7**| | | | | | | | |

`Two legal moves where pos = (7, 7)`

|M|0|1|2|3|4|5|6|7|
|-|-|-|-|-|-|-|-|-|
|**0**| | | | | | | | |
|**1**| | | | | | | | |
|**2**| | | | | | | | |
|**3**| | | | | | | | |
|**4**| | | | | | | | |
|**5**| | | | | | | \*| |
|**6**| | | | | | | | |
|**7**| | | | | | \*| | N|

\ No newline at end of file
diff --git a/week01/01. Problems/solutions.py b/week01/01. Problems/solutions.py
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+"""
+Copyright (c) 2019 Hack Bulgaria
+
+The project is released under MIT License
+https://github.com/HackBulgaria/Programming-101-Python-2020-Spring
+"""
+
+
+def divisible_by_d(n: list, d: int) -> list:
+	'''Returns a list of all numbers from n divislbe by d.'''
+	return [i for i in n if i % d == 0]
+
+
+def knight_moves(pos: tuple) -> int:
+	'''Returns the count of all legal moves which the knight can make.'''
+	offsets = ((-2, -1), (-2, 1), (-1, -2), (-1, 2),
+			   (1, -2), (1, 2), (2, -1), (2, 1))
+
+	return [ 0 <= (pos[0] + o[0]) < 8 and
+			 0 <= (pos[1] + o[1]) < 8 
+			for o in offsets].count(True)
diff --git a/week01/README.md b/week01/README.md
new file mode 100644
index 0000000..e69de29